72121905

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{4099}}^1$

素因数の和:4150

約数の個数: 48

約数和(自身を含む): 138153600

約数和(自身を除く): 66031695

約数列:

[1, 3, 5, 9, 15, 17, 23, 45, 51, 69, 85, 115, 153, 207, 255, 345, 391, 765, 1035, 1173, 1955, 3519, 4099, 5865, 12297, 17595, 20495, 36891, 61485, 69683, 94277, 184455, 209049, 282831, 348415, 471385, 627147, 848493, 1045245, 1414155, 1602709, 3135735, 4242465, 4808127, 8013545, 14424381, 24040635, 72121905]

約数ペア:

[(1, 72121905), (3, 24040635), (5, 14424381), (9, 8013545), (15, 4808127), (17, 4242465), (23, 3135735), (45, 1602709), (51, 1414155), (69, 1045245), (85, 848493), (115, 627147), (153, 471385), (207, 348415), (255, 282831), (345, 209049), (391, 184455), (765, 94277), (1035, 69683), (1173, 61485), (1955, 36891), (3519, 20495), (4099, 17595), (5865, 12297)]